Our California ADU experts design space-smart backyard homes that maximize light, privacy, and storage while seamlessly complementing your main residence. Every detail is tailored to your property and built to add long-term value for generations.
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As a trusted ADU builder for 35+ years, we handle everything from permits to construction using proven methods and transparent communication. We deliver quality backyard homes on time and on budget—build it once, build it right.
See if an ADU is possible on your property →
With 35+ years of experience, we've streamlined the ADU process from feasibility to keys in hand. We're your partner and advocate, handling everything with cities, inspectors, and utilities while delivering better results for multi-generational living or investment.
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First, we confirm your property qualifies for an ADU. Our team reviews local zoning and regulations, and does a deep dive into property specifics so you understand what’s possible. You’ll then receive clear, buildable options designed to maximize space and value—so you can make confident decisions from day one.
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Next, we finalize your design and acquire permits for you. From structural engineering and Title 24 energy compliance to finishes, utilities, and city submittals, your dedicated ADU builder team coordinates everything. Expect proactive communication, a reliable schedule, and a fixed, transparent scope that sets construction up for success.
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Then we build it right. With decades of experience, our crews manage any subcontractors, inspections, quality controls, and site protection while keeping you updated at every milestone with our easy-to-use, online project portal. After move-in, your backyard home is backed by a warranty, so you can enjoy peace of mind for years to come.
“For an ADU, the way to go is with ActonADU as they design-build the project and work through all the permit hurdles. There are just too many details to work through that need the expertise of an org such as ActonADU to get things done well.”
- Maclaren Family
“From beginning to the end, Acton was on top of their game! All of their sub contractors were really good and detail oriented. The entire Acton Team did a phenomenal job.”
- Hoffman Family
“I had a great experience working with Acton ADU on our project in Downtown San Jose! From the beginning, the process was easy and straightforward. The whole team was professional and communicative, which made me feel confident throughout the design, permits, and build.”
- Quigley Family
Learn what models might work on your property
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Investor Series | 888 sq. ft. | 2 bedrooms | 2 baths
Choose from a variety of curated models, engineered to maximize natural light, storage, privacy, and comfort. Whether for multi-generational living or long-term investment. Acton Build Ready ADUs blend timeless architecture and practical features, with a variety of floorplans, square footages, and personalizations.
Skip lengthy custom design cycles and mountains of uncertainty. Our pre-designed plans, designer curated finish packages, and streamlined permitting methodology creates a faster, more predictable build with fewer costly surprises.aa
Every Build Ready ADU is traditionally, site-built to California residential standards (not prefab or mobile), delivering durable performance and true property value.
